A guide for all practitioners with an interest in workplace factors affecting their patients, and with responsibility for decisions on fitness for work. It brings together current practices, legislation and tools to ensure that occupational health professionals are equipped with a single authoritative guide on how to assess and manage health risks in the workplace. It provides a summary of the theory and practice of occupational health. The scope of this text is wide, with twelve sections covering workplace hazards, occupational diseases, occupational health practice, fitness for work, occupational health law, occupational hygiene, toxicology, occupational epidemiology, environmental medicine, safety science, practical procedures and emergencies in occupational health. The authors also address current issues such as Gulf War Syndrome, SARS, and exposure to electromagnetic fields.